ID | 9:00 pm
This gripping true-crime series, which recounts incidents in which real people shared their lives with a loved one who turned out to be a murderer, returns for Season 6 with a premiere called "I Tried to Prevent This." The story chronicles how Kathy Swanson lived with the terrible fear that her son, Michael, eventually would seriously harm someone. For 17 years, she tries in vain to convince people that there is something "different" about Michael. Finally, her worst nightmare comes true.